21596120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 41907880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 349, 364, 442, 455, 476, 520, 595, 680, 698, 728, 884, 910, 952, 1105, 1190, 1396, 1547, 1745, 1768, 1820, 2210, 2380, 2443, 2792, 3094, 3490, 3640, 4420, 4537, 4760, 4886, 5933, 6188, 6980, 7735, 8840, 9074, 9772, 11866, 12215, 12376, 13960, 15470, 18148, 19544, 22685, 23732, 24430, 29665, 30940, 31759, 36296, 41531, 45370, 47464, 48860, 59330, 61880, 63518, 77129, 83062, 90740, 97720, 118660, 127036, 154258, 158795, 166124, 181480, 207655, 237320, 254072, 308516, 317590, 332248, 385645, 415310, 539903, 617032, 635180, 771290, 830620, 1079806, 1270360, 1542580, 1661240, 2159612, 2699515, 3085160, 4319224, 5399030, 10798060, 21596120]

約数ペア:

[(1, 21596120), (2, 10798060), (4, 5399030), (5, 4319224), (7, 3085160), (8, 2699515), (10, 2159612), (13, 1661240), (14, 1542580), (17, 1270360), (20, 1079806), (26, 830620), (28, 771290), (34, 635180), (35, 617032), (40, 539903), (52, 415310), (56, 385645), (65, 332248), (68, 317590), (70, 308516), (85, 254072), (91, 237320), (104, 207655), (119, 181480), (130, 166124), (136, 158795), (140, 154258), (170, 127036), (182, 118660), (221, 97720), (238, 90740), (260, 83062), (280, 77129), (340, 63518), (349, 61880), (364, 59330), (442, 48860), (455, 47464), (476, 45370), (520, 41531), (595, 36296), (680, 31759), (698, 30940), (728, 29665), (884, 24430), (910, 23732), (952, 22685), (1105, 19544), (1190, 18148), (1396, 15470), (1547, 13960), (1745, 12376), (1768, 12215), (1820, 11866), (2210, 9772), (2380, 9074), (2443, 8840), (2792, 7735), (3094, 6980), (3490, 6188), (3640, 5933), (4420, 4886), (4537, 4760)]