21003702976

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:718

約数の個数: 112

約数和(自身を含む): 43478167552

約数和(自身を除く): 22474464576

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 127, 148, 211, 254, 296, 331, 422, 508, 592, 662, 844, 1016, 1184, 1324, 1688, 2032, 2368, 2648, 3376, 4064, 4699, 5296, 6752, 7807, 8128, 9398, 10592, 12247, 13504, 15614, 18796, 21184, 24494, 26797, 31228, 37592, 42037, 48988, 53594, 62456, 69841, 75184, 84074, 97976, 107188, 124912, 139682, 150368, 168148, 195952, 214376, 249824, 279364, 300736, 336296, 391904, 428752, 499648, 558728, 672592, 783808, 857504, 991489, 1117456, 1345184, 1555369, 1715008, 1982978, 2234912, 2584117, 2690368, 3110738, 3965956, 4469824, 5168234, 6221476, 7931912, 8869807, 10336468, 12442952, 15863824, 17739614, 20672936, 24885904, 31727648, 35479228, 41345872, 49771808, 63455296, 70958456, 82691744, 99543616, 141916912, 165383488, 283833824, 328182859, 567667648, 656365718, 1312731436, 2625462872, 5250925744, 10501851488, 21003702976]

約数ペア:

[(1, 21003702976), (2, 10501851488), (4, 5250925744), (8, 2625462872), (16, 1312731436), (32, 656365718), (37, 567667648), (64, 328182859), (74, 283833824), (127, 165383488), (148, 141916912), (211, 99543616), (254, 82691744), (296, 70958456), (331, 63455296), (422, 49771808), (508, 41345872), (592, 35479228), (662, 31727648), (844, 24885904), (1016, 20672936), (1184, 17739614), (1324, 15863824), (1688, 12442952), (2032, 10336468), (2368, 8869807), (2648, 7931912), (3376, 6221476), (4064, 5168234), (4699, 4469824), (5296, 3965956), (6752, 3110738), (7807, 2690368), (8128, 2584117), (9398, 2234912), (10592, 1982978), (12247, 1715008), (13504, 1555369), (15614, 1345184), (18796, 1117456), (21184, 991489), (24494, 857504), (26797, 783808), (31228, 672592), (37592, 558728), (42037, 499648), (48988, 428752), (53594, 391904), (62456, 336296), (69841, 300736), (75184, 279364), (84074, 249824), (97976, 214376), (107188, 195952), (124912, 168148), (139682, 150368)]