21087150

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:199

約数の個数: 144

約数和(自身を含む): 64460160

約数和(自身を除く): 43373010

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 25, 30, 35, 38, 42, 49, 50, 57, 70, 75, 95, 98, 105, 114, 133, 147, 150, 151, 175, 190, 210, 245, 266, 285, 294, 302, 350, 399, 453, 475, 490, 525, 570, 665, 735, 755, 798, 906, 931, 950, 1050, 1057, 1225, 1330, 1425, 1470, 1510, 1862, 1995, 2114, 2265, 2450, 2793, 2850, 2869, 3171, 3325, 3675, 3775, 3990, 4530, 4655, 5285, 5586, 5738, 6342, 6650, 7350, 7399, 7550, 8607, 9310, 9975, 10570, 11325, 13965, 14345, 14798, 15855, 17214, 19950, 20083, 22197, 22650, 23275, 26425, 27930, 28690, 31710, 36995, 40166, 43035, 44394, 46550, 52850, 60249, 69825, 71725, 73990, 79275, 86070, 100415, 110985, 120498, 139650, 140581, 143450, 158550, 184975, 200830, 215175, 221970, 281162, 301245, 369950, 421743, 430350, 502075, 554925, 602490, 702905, 843486, 1004150, 1109850, 1405810, 1506225, 2108715, 3012450, 3514525, 4217430, 7029050, 10543575, 21087150]

約数ペア:

[(1, 21087150), (2, 10543575), (3, 7029050), (5, 4217430), (6, 3514525), (7, 3012450), (10, 2108715), (14, 1506225), (15, 1405810), (19, 1109850), (21, 1004150), (25, 843486), (30, 702905), (35, 602490), (38, 554925), (42, 502075), (49, 430350), (50, 421743), (57, 369950), (70, 301245), (75, 281162), (95, 221970), (98, 215175), (105, 200830), (114, 184975), (133, 158550), (147, 143450), (150, 140581), (151, 139650), (175, 120498), (190, 110985), (210, 100415), (245, 86070), (266, 79275), (285, 73990), (294, 71725), (302, 69825), (350, 60249), (399, 52850), (453, 46550), (475, 44394), (490, 43035), (525, 40166), (570, 36995), (665, 31710), (735, 28690), (755, 27930), (798, 26425), (906, 23275), (931, 22650), (950, 22197), (1050, 20083), (1057, 19950), (1225, 17214), (1330, 15855), (1425, 14798), (1470, 14345), (1510, 13965), (1862, 11325), (1995, 10570), (2114, 9975), (2265, 9310), (2450, 8607), (2793, 7550), (2850, 7399), (2869, 7350), (3171, 6650), (3325, 6342), (3675, 5738), (3775, 5586), (3990, 5285), (4530, 4655)]