19797516

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 32487444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 89, 111, 148, 167, 178, 222, 267, 333, 334, 356, 444, 501, 534, 666, 668, 801, 1002, 1068, 1332, 1503, 1602, 2004, 3006, 3204, 3293, 6012, 6179, 6586, 9879, 12358, 13172, 14863, 18537, 19758, 24716, 29637, 29726, 37074, 39516, 44589, 55611, 59274, 59452, 74148, 89178, 111222, 118548, 133767, 178356, 222444, 267534, 535068, 549931, 1099862, 1649793, 2199724, 3299586, 4949379, 6599172, 9898758, 19797516]

約数ペア:

[(1, 19797516), (2, 9898758), (3, 6599172), (4, 4949379), (6, 3299586), (9, 2199724), (12, 1649793), (18, 1099862), (36, 549931), (37, 535068), (74, 267534), (89, 222444), (111, 178356), (148, 133767), (167, 118548), (178, 111222), (222, 89178), (267, 74148), (333, 59452), (334, 59274), (356, 55611), (444, 44589), (501, 39516), (534, 37074), (666, 29726), (668, 29637), (801, 24716), (1002, 19758), (1068, 18537), (1332, 14863), (1503, 13172), (1602, 12358), (2004, 9879), (3006, 6586), (3204, 6179), (3293, 6012)]