21079170

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:629

約数の個数: 128

約数和(自身を含む): 67737600

約数和(自身を除く): 46658430

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 513, 570, 587, 630, 665, 798, 855, 945, 1026, 1174, 1197, 1330, 1710, 1761, 1890, 1995, 2394, 2565, 2935, 3522, 3591, 3990, 4109, 5130, 5283, 5870, 5985, 7182, 8218, 8805, 10566, 11153, 11970, 12327, 15849, 17610, 17955, 20545, 22306, 24654, 26415, 31698, 33459, 35910, 36981, 41090, 52830, 55765, 61635, 66918, 73962, 78071, 79245, 100377, 110943, 111530, 123270, 156142, 158490, 167295, 184905, 200754, 221886, 234213, 301131, 334590, 369810, 390355, 468426, 501885, 554715, 602262, 702639, 780710, 1003770, 1109430, 1171065, 1405278, 1505655, 2107917, 2342130, 3011310, 3513195, 4215834, 7026390, 10539585, 21079170]

約数ペア:

[(1, 21079170), (2, 10539585), (3, 7026390), (5, 4215834), (6, 3513195), (7, 3011310), (9, 2342130), (10, 2107917), (14, 1505655), (15, 1405278), (18, 1171065), (19, 1109430), (21, 1003770), (27, 780710), (30, 702639), (35, 602262), (38, 554715), (42, 501885), (45, 468426), (54, 390355), (57, 369810), (63, 334590), (70, 301131), (90, 234213), (95, 221886), (105, 200754), (114, 184905), (126, 167295), (133, 158490), (135, 156142), (171, 123270), (189, 111530), (190, 110943), (210, 100377), (266, 79245), (270, 78071), (285, 73962), (315, 66918), (342, 61635), (378, 55765), (399, 52830), (513, 41090), (570, 36981), (587, 35910), (630, 33459), (665, 31698), (798, 26415), (855, 24654), (945, 22306), (1026, 20545), (1174, 17955), (1197, 17610), (1330, 15849), (1710, 12327), (1761, 11970), (1890, 11153), (1995, 10566), (2394, 8805), (2565, 8218), (2935, 7182), (3522, 5985), (3591, 5870), (3990, 5283), (4109, 5130)]