21925050

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 144

約数和(自身を含む): 67004640

約数和(自身を除く): 45079590

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, 157, 175, 190, 210, 245, 266, 285, 294, 314, 350, 399, 471, 475, 490, 525, 570, 665, 735, 785, 798, 931, 942, 950, 1050, 1099, 1225, 1330, 1425, 1470, 1570, 1862, 1995, 2198, 2355, 2450, 2793, 2850, 2983, 3297, 3325, 3675, 3925, 3990, 4655, 4710, 5495, 5586, 5966, 6594, 6650, 7350, 7693, 7850, 8949, 9310, 9975, 10990, 11775, 13965, 14915, 15386, 16485, 17898, 19950, 20881, 23079, 23275, 23550, 27475, 27930, 29830, 32970, 38465, 41762, 44745, 46158, 46550, 54950, 62643, 69825, 74575, 76930, 82425, 89490, 104405, 115395, 125286, 139650, 146167, 149150, 164850, 192325, 208810, 223725, 230790, 292334, 313215, 384650, 438501, 447450, 522025, 576975, 626430, 730835, 877002, 1044050, 1153950, 1461670, 1566075, 2192505, 3132150, 3654175, 4385010, 7308350, 10962525, 21925050]

約数ペア:

[(1, 21925050), (2, 10962525), (3, 7308350), (5, 4385010), (6, 3654175), (7, 3132150), (10, 2192505), (14, 1566075), (15, 1461670), (19, 1153950), (21, 1044050), (25, 877002), (30, 730835), (35, 626430), (38, 576975), (42, 522025), (49, 447450), (50, 438501), (57, 384650), (70, 313215), (75, 292334), (95, 230790), (98, 223725), (105, 208810), (114, 192325), (133, 164850), (147, 149150), (150, 146167), (157, 139650), (175, 125286), (190, 115395), (210, 104405), (245, 89490), (266, 82425), (285, 76930), (294, 74575), (314, 69825), (350, 62643), (399, 54950), (471, 46550), (475, 46158), (490, 44745), (525, 41762), (570, 38465), (665, 32970), (735, 29830), (785, 27930), (798, 27475), (931, 23550), (942, 23275), (950, 23079), (1050, 20881), (1099, 19950), (1225, 17898), (1330, 16485), (1425, 15386), (1470, 14915), (1570, 13965), (1862, 11775), (1995, 10990), (2198, 9975), (2355, 9310), (2450, 8949), (2793, 7850), (2850, 7693), (2983, 7350), (3297, 6650), (3325, 6594), (3675, 5966), (3925, 5586), (3990, 5495), (4655, 4710)]