21795190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 44089920

約数和(自身を除く): 22294730

約数列:

[1, 2, 5, 10, 17, 34, 41, 53, 59, 82, 85, 106, 118, 170, 205, 265, 295, 410, 530, 590, 697, 901, 1003, 1394, 1802, 2006, 2173, 2419, 3127, 3485, 4346, 4505, 4838, 5015, 6254, 6970, 9010, 10030, 10865, 12095, 15635, 21730, 24190, 31270, 36941, 41123, 53159, 73882, 82246, 106318, 128207, 184705, 205615, 256414, 265795, 369410, 411230, 531590, 641035, 1282070, 2179519, 4359038, 10897595, 21795190]

約数ペア:

[(1, 21795190), (2, 10897595), (5, 4359038), (10, 2179519), (17, 1282070), (34, 641035), (41, 531590), (53, 411230), (59, 369410), (82, 265795), (85, 256414), (106, 205615), (118, 184705), (170, 128207), (205, 106318), (265, 82246), (295, 73882), (410, 53159), (530, 41123), (590, 36941), (697, 31270), (901, 24190), (1003, 21730), (1394, 15635), (1802, 12095), (2006, 10865), (2173, 10030), (2419, 9010), (3127, 6970), (3485, 6254), (4346, 5015), (4505, 4838)]